Hong Kong

Top 16 largest HK Companies in the Energy sector by Market Cap

This is the list of the largest public listed companies in the Energy sector from Hong Kong by market capitalization with links to their reference stock and industry.

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Top Energy Companies from Hong Kong as of Jan. 01, 2026

Rank Company Market Cap (USD) Country Sector Industry
1 CNOOC Limited $134.32 B Hong Kong HK Energy HK Oil & Gas E&P
2 China Merchants Energy Shipping Co. Ltd $10.32 B Hong Kong HK Energy HK Oil & Gas Midstream
3 Kunlun Energy Company Ltd $8.27 B Hong Kong HK Energy HK Oil & Gas Integrated
4 CGN Mining Company Ltd $2.93 B Hong Kong HK Energy HK Uranium
5 United Energy Group Ltd $1.63 B Hong Kong HK Energy HK Oil & Gas E&P
6 Sinopec Kantons Holdings Ltd $1.33 B Hong Kong HK Energy HK Oil & Gas Midstream
7 AAG Energy Holdings Ltd $792.8 M

(July 1, 2023)

 Hong Kong HK Energy HK Oil & Gas E&P
8 China LNG Group Ltd $444.2 M Hong Kong HK Energy HK Oil & Gas Refining & Marketing
9 IDG Energy Investment Ltd $197.2 M Hong Kong HK Energy HK Oil & Gas E&P
10 China Oil And Gas Group Ltd $123.1 M Hong Kong HK Energy HK Oil & Gas Refining & Marketing
11 SouthGobi Resources Ltd. $82.3 M Hong Kong HK Energy HK Thermal Coal
12 China Energy Development Holdings Ltd $79.0 M

(July 1, 2025)

 Hong Kong HK Energy HK Oil & Gas Integrated
13 Polyard Petroleum International Group Ltd $78.1 M

(Jan. 1, 2024)

 Hong Kong HK Energy HK Oil & Gas E&P
14 Huili Resources $67.0 M

(July 1, 2025)

 Hong Kong HK Energy HK Thermal Coal
15 Strong Petrochemical Holdings Ltd $45.3 M Hong Kong HK Energy HK Oil & Gas Refining & Marketing
16 Global Strategic Group Ltd $7.3 M Hong Kong HK Energy HK Oil & Gas Refining & Marketing

Top Energy Companies from Hong Kong as of Jan. 01, 2026

1. CNOOC

Company Profile: CNOOC Limited
Market Cap (USD): $134.32 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas E&P

2. China Merchants Energy Shipping Co. Ltd

Company Profile: China Merchants Energy Shipping Co. Ltd
Market Cap (USD): $10.32 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Midstream

3. Kunlun Energy Company Ltd

Company Profile: Kunlun Energy Company Ltd
Market Cap (USD): $8.27 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Integrated

4. CGN Mining Company Ltd

Company Profile: CGN Mining Company Ltd
Market Cap (USD): $2.93 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Uranium

5. United Energy Group Ltd

Company Profile: United Energy Group Ltd
Market Cap (USD): $1.63 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas E&P

6. Sinopec Kantons Holdings Ltd

Company Profile: Sinopec Kantons Holdings Ltd
Market Cap (USD): $1.33 B
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Midstream

7. AAG Energy Holdings Ltd

Company Profile: AAG Energy Holdings Ltd
Market Cap (USD): $792.8 M (July 1, 2023)
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas E&P

8. China LNG Group Ltd

Company Profile: China LNG Group Ltd
Market Cap (USD): $444.2 M
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Refining & Marketing

9. IDG Energy Investment Ltd

Company Profile: IDG Energy Investment Ltd
Market Cap (USD): $197.2 M
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas E&P

10. China Oil And Gas Group Ltd

Company Profile: China Oil And Gas Group Ltd
Market Cap (USD): $123.1 M
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Refining & Marketing

11. SouthGobi Resources Ltd.

Company Profile: SouthGobi Resources Ltd.
Market Cap (USD): $82.3 M
Country: Hong Kong
Sector: HK Energy
Industry: HK Thermal Coal

12. China Energy Development Holdings Ltd

Company Profile: China Energy Development Holdings Ltd
Market Cap (USD): $79.0 M (July 1, 2025)
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Integrated

13. Polyard Petroleum International Group Ltd

Company Profile: Polyard Petroleum International Group Ltd
Market Cap (USD): $78.1 M (Jan. 1, 2024)
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas E&P

14. Huili Resources

Company Profile: Huili Resources
Market Cap (USD): $67.0 M (July 1, 2025)
Country: Hong Kong
Sector: HK Energy
Industry: HK Thermal Coal

15. Strong Petrochemical Holdings Ltd

Company Profile: Strong Petrochemical Holdings Ltd
Market Cap (USD): $45.3 M
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Refining & Marketing

16. Global Strategic Group Ltd

Company Profile: Global Strategic Group Ltd
Market Cap (USD): $7.3 M
Country: Hong Kong
Sector: HK Energy
Industry: HK Oil & Gas Refining & Marketing

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